diff --git a/db/clickhouse/schema.sql b/db/clickhouse/schema.sql
index 02be2e38..3dcfda9f 100644
--- a/db/clickhouse/schema.sql
+++ b/db/clickhouse/schema.sql
@@ -66,8 +66,8 @@ CREATE TABLE umami.session_data
     created_at DateTime('UTC'),
     job_id Nullable(UUID)
 )
-ENGINE = MergeTree
-    ORDER BY (website_id, session_id, data_key, created_at)
+ENGINE = ReplacingMergeTree
+    ORDER BY (website_id, session_id, data_key)
     SETTINGS index_granularity = 8192;
 
 -- stats hourly
diff --git a/src/app/(main)/websites/[websiteId]/sessions/[sessionId]/SessionData.module.css b/src/app/(main)/websites/[websiteId]/sessions/[sessionId]/SessionData.module.css
index 072172f6..4794803d 100644
--- a/src/app/(main)/websites/[websiteId]/sessions/[sessionId]/SessionData.module.css
+++ b/src/app/(main)/websites/[websiteId]/sessions/[sessionId]/SessionData.module.css
@@ -7,6 +7,7 @@
 
 .header {
   font-weight: bold;
+  margin-bottom: 20px;
 }
 
 .empty {